In the US, diesel is more heavily taxed than gas [1], in no small part because it's primarily used commercially, so higher taxes are met with less popular disma

In the US, diesel is more heavily taxed than gas [1], in no small part because it's primarily used commercially, so higher taxes are met with less popular dismay. Of course, taxes per mile make for a more interesting comparison than taxes per gallon, so the higher per-gallon tax isn't necessarily the best metric to consider. But the higher taxation does mean that fluctuations in the price of oil has less of an impact percentage-wise. [1] http://en.m.wikipedia.org/wiki/Fuel_taxes_in_the_United_States http://en.m.wikipedia.org/wiki/Fuel_taxes_in_the_United_Stat...